CN105275556A - Control system for water adding tank of explosion-proof diesel engine - Google Patents
Control system for water adding tank of explosion-proof diesel engine Download PDFInfo
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- CN105275556A CN105275556A CN201410326850.0A CN201410326850A CN105275556A CN 105275556 A CN105275556 A CN 105275556A CN 201410326850 A CN201410326850 A CN 201410326850A CN 105275556 A CN105275556 A CN 105275556A
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- water
- washing box
- water washing
- diesel engine
- liquid level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention discloses a control system for a water adding tank of an explosion-proof diesel engine. The control system for the water adding tank of the explosion-proof diesel engine comprises an exhaust manifold (1), a washing tank (2), the water adding tank (5) and an electronic control unit (ECU) (4). The exhaust manifold (1) is connected with the washing tank (2), and the water adding tank (5) adds water into the washing tank (2) through a pipeline. An electronic liquid level sensor (3) is arranged in the washing tank (2), and the ECU (4) is connected with the liquid level sensor (3) and an electromagnetic valve (6). The electronic liquid level sensor (3) is used for obtaining water level information of the washing tank (2), and the ECU (4) is used for controlling opening or closing of the electromagnetic valve (6) according to the water level information and a preset water level threshold value. By means of the control system, the tail gas disposal effect of the explosion-proof diesel engine is greatly improved.
Description
Technical field
The invention belongs to anti-explosion diesel engine field, particularly a kind of anti-explosion diesel engine water supply tank control system.
Background technique
At present, being that the mining transportation vehicle of power needs to carry out vent gas treatment with diesel engine, in order to make the temperature of diesel engine lower than 70 DEG C, the tail gas of diesel engine being passed in water washing box.On the other hand, in diesel engine running, because the water in water washing box is constantly taken out of, therefore, water level in water washing box can be more and more lower, and when the water level in water washing box is too low, the temperature of diesel engine will more than 70 DEG C at this moment, then need to set up a water supply tank again, the water in water supply tank is filled into water washing box.In present mine vehicle anti-explosion diesel engine, be by manual operation from water supply tank to water washing box major part, adopt mechanical float ball valve to carry out moisturizing control, moisturizing can not be carried out in time.In the exhaust of anti-explosion diesel engine not diluted, its harmful gas composition carbon monoxide (CO) is very high with the volume concentration of nitrogen oxide (NOx), and this is unallowed for mine operation.
Summary of the invention
For the defect of prior art, the invention provides a kind of anti-explosion diesel engine tail gas processing system.
A kind of anti-explosion diesel engine water supply tank control system, comprising: exhaust manifold 1, water washing box 2, water supply tank 5 and ECU4;
Described exhaust manifold 1 is connected with water washing box 2, water supply tank 5 by pipeline to moisturizing in water washing box 2; Electronic liquid level sensor 3 is provided with in described water washing box 2, ECU4 is connected with solenoid valve 6 with liquid level sensor 3, electronic liquid level sensor 3 is for obtaining the water level information of water washing box 2, and ECU4 is used for unlatching according to water level information and predetermined watermark threshold Controlling solenoid valve 6 or closedown; Described solenoid valve 6 is arranged on the water pipe line between water supply tank 5 and water washing box 2;
Described exhaust manifold 1 includes the waste gas solid particle process pipe 1.1, harmful gas process pipe 1.2 and the waste gas cooling tube 1.3 that connect successively; The inner chamber of described waste gas solid particle process pipe 1.1 is provided with oxidizing catalytic converter (DOC) and particulate filter (DPF); Selective catalytic reduction device (SCR) is provided with in described harmful gas process pipe 1.2;
Described water washing box 2 comprises the casing 2.8 that water is housed, casing 2.8 is provided with tail gas suction port 2.2 and the relief opening 2.1 being connected air-water separation mechanism, a mixing wastewater with air plate 2.3 is at least provided with according to tail gas motion path in casing 2.8, described mixing wastewater with air plate 2.3 comprises skeleton 2.6, filler 2.7 is filled with in skeleton 2.6, described relief opening 2.1 bottom is provided with guide plate 2.10, and the bottom of described casing 2.8 is provided with sewage draining exit 2.5.
Optionally, described mixing wastewater with air plate 2.3 is provided with waved filter plate 2.9.
The invention has the beneficial effects as follows: water washing box water replenishing device adds controller, obtain the water level information of water washing box at liquid level sensor after, by controller according to the unlatching of this water level information determination moisturizing valve or closedown, and then realize being water washing box moisturizing when needs, thus the water level in water washing box is controlled; By the solid particulate matter (PM) utilizing particulate filter (DPF) to process anti-explosion diesel engine discharging waste gas, and the regeneration of oxidation catalyst (DOC) auxiliary particle filter (DPF) is utilized then to utilize selective catalytic reduction device (SCR) to reduce harmful gas composition nitrogen oxide (NOx) content in waste gas; Water washing box structure is simple, fully mixed owing to making tail gas and water and contacted, the seizure of particulate matter and the assimilation effect of harmful gas are obviously better than to the water washing cleaning case of other pattern, gas and water separator effectively reduces the consumption of water, and operating cost is low and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of anti-explosion diesel engine water supply tank control system of the present invention;
Fig. 2 is the structural representation of exhaust manifold;
Fig. 3 is the structural representation of water washing box;
Fig. 4 is the structural representation of mixing wastewater with air plate.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing, make above-mentioned and other object of the present invention, Characteristics and advantages will be more clear.Reference character identical in whole accompanying drawing indicates identical part.Deliberately do not draw accompanying drawing in proportion, focus on purport of the present invention is shown.
Below in conjunction with Fig. 1, to a preferred embodiment of the present invention will be described in detail.Anti-explosion diesel engine tail gas processing system, comprises the exhaust manifold 1 be connected with water washing box 2, and water supply tank 5 is for moisturizing in water washing box 2.Be provided with electronic liquid level sensor 3 in water washing box 2, the ECU4 of diesel engine is connected with solenoid valve 6 with liquid level sensor 3.Wherein, electronic liquid level sensor 3 is for obtaining the water level information of water washing box 2; ECU4 is connected with liquid level sensor 3, for according to the unlatching of water level information and predetermined watermark threshold determination solenoid valve 6 or closedown; Further, solenoid valve 6 is arranged on the water pipe line between water supply tank 5 and water washing box 2.
Electronic liquid level sensor 3 is connected with the signal input part of ECU4 by signaling line, and the signal output part of ECU4 is connected by the control coil of guide line with solenoid valve 3.ECU4 gathers water level information by electronic liquid level sensor 2, and the ECU4 this water level information fed back in electric control box, ECU4 controls according to the break-make of water level information to the solenoid valve 6 installed additional, thus solenoid valve 6 break-make of solenoid valve can be judged according to the water level actual height of water washing box 2 and the watermark threshold preset, whether realize from water supply tank 5 to the moisturizing of water washing box 2.Specifically, when water washing box 2 middle water level is lower than designated water level value, electrical signal can be passed to ECU4 by electronic liquid level sensor 3, ECU4 Controlling solenoid valve 6, solenoid valve 6 is opened, and the water in water supply tank 5 can fill in water washing box 1 by solenoid valve 6, when the water level value in water washing box 1 is higher than designated water level value, solenoid valve 6 cuts out, thus can control the water level in water washing box 1.
In order to realize the effective process to tail gas, exhaust manifold 1 includes the waste gas solid particle process pipe 1.1, harmful gas process pipe 1.2 and the waste gas cooling tube 1.3 (Fig. 2) that connect successively.Subparticle (PM) is reduced through waste gas solid particle process pipe 1.1 before toxic emission, the concentration of nitrogen oxide (NOx) is reduced through harmful gas process pipe 1.2, reduce temperature through waste gas cooling tube 1.3, and dilute carbonomonoxide concentration.The inner chamber of waste gas solid particle process pipe 1.1 is provided with oxidizing catalytic converter (DOC) and particulate filter (DPF) and processes subparticle (PM) in waste gas, particulate filter (DPF) micro particle catching technology is the most effective particulate purification technics of generally acknowledging at present, is also one of best technology of current commercial prospect.In order to process nitrogen oxides of exhaust gas NOx adopt be selective catalytic reduction device (SCR) treatment technology, namely urea liquid (concentration of aqueous solution is 32.5% ± 0.5%) is utilized, in exhaust, spray into the reducing substances such as urea, ammoniacal liquor, nitrogen oxide NOx (about 90% is NO) is reduced to nitrogen (N2) and water (H2O).It is nontoxic, clean, odorlessness, not easily catch fire, without explosion risk.Due to the particularity of anti-explosion diesel engine applying working condition, as the power source in coal mine transport vehicle, its surface temperature of anti-explosion diesel engine safety standard requirement can not more than 150 DEG C, exhaust temperature can not more than 70 DEG C etc. particular/special requirement.Also be provided with waste gas cooling tube 3 in embodiments of the invention, by waste gas cooling tube, the exhaust gas temperature in exhaust manifold reduced.
Exhaust manifold 1 is connected with water washing box 2, and the waste gas that exhaust manifold 1 is discharged only has just discharges by the tail gas discharging pipe on water washing box after water washing box 2 further washing process, refers to Fig. 3,4.
Specifically, water washing box 2 comprises the casing 2.8 that water is housed, casing 2.8 is provided with tail gas suction port 2.2, is connected with the relief opening 2.1 of air-water separation mechanism, a mixing wastewater with air plate 2.3 is at least provided with according to tail gas motion path in casing 2.8, described mixing wastewater with air plate 2.3 comprises skeleton 2.6, be filled with the filler 2.7 prepared by heatproof, resistant material in skeleton 2.6, described filler 2.7 is entwined by strip material random turn of song, and the cross section of strip material is blunt form cross section; Gross blowhole cracks as micro-bubble through mixing wastewater with air plate 2.3 by tail gas, is fully combined with water and purifies, then realize discharging from relief opening 2.1 after air-water separation through air-water separation mechanism.The cross section of the present embodiment strip material is rectangle, and material is stainless steel, and the thickness (minor face) of strip material is 0.05mm, and width (long limit) is 2mm.Effectively be separated for making air water, air-water separation mechanism of the present invention comprise be arranged in casing 2.8, the guide plate 2.10 of relief opening 2.1 bottom, under guide plate 2.10 acts on, moisture tail gas is spinned ascending motion, moisture throws to the cylinder inboard wall of relief opening 2.1 under the influence of centrifugal force, realize air-water separation, tail gas spin in relief opening 2.1 ascending motion discharge.Contact for promoting steam-water mixing further and catch particulate matter, mixing wastewater with air plate 2.3 of the present invention can also be provided with waved filter plate 2.9, to promote mixing wastewater with air further.Motor exhaust enters bottom casing 2.8 from suction port 2.2 and contacts with water, and when tail gas passes through the filler 2.7 of mixing wastewater with air plate 2.3, gross blowhole filled 2.7 cuts into a lot by the small bubble that liquid surrounds, and forms foam.Because filler 2.7 is random random windings, make small bubble in casing 2.8, do overall random motion upwards, impact with other bubble or liquid again during random motion, collide, further promotion gas fully mixes with liquid, make the particulate matters such as the carbon dust in tail gas and harmful gas by fluid acquisition, absorption, stay in casing 2.8, waved filter plate 2.9 promotes that steam-water mixing contacts and catches particulate matter further; During blowdown, the particulate matter of catching is discharged by sewage draining exit 2.5 with sewage.
Set forth a lot of detail in the above description so that fully understand the present invention.But above description is only preferred embodiment of the present invention, the present invention can be much different from alternate manner described here to implement, and therefore the present invention is not by the disclosed concrete restriction implemented above.Any those skilled in the art are not departing under technical solution of the present invention ambit simultaneously, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (2)
1. an anti-explosion diesel engine water supply tank control system, is characterized in that, comprising: exhaust manifold (1), water washing box (2), water supply tank (5) and ECU (4);
Described exhaust manifold (1) is connected with water washing box (2), water supply tank (5) by water pipe line to water washing box (2) interior moisturizing; Electronic liquid level sensor (3) is provided with in described water washing box (2), ECU (4) is connected with solenoid valve (6) with electronic liquid level sensor (3), and described solenoid valve (6) is arranged on the water pipe line between water supply tank (5) and water washing box (2); Electronic liquid level sensor (3) is for obtaining the water level information of water washing box (2), and ECU (4) is for according to the unlatching of water level information and predetermined watermark threshold Controlling solenoid valve (6) or closedown;
Described exhaust manifold (1) include connect successively waste gas solid particle process pipe (1.1), harmful gas process pipe (1.2) and waste gas cooling tube (1.3); The inner chamber of described waste gas solid particle process pipe (1.1) is provided with oxidizing catalytic converter (DOC) and particulate filter (DPF); Selective catalytic reduction device (SCR) is provided with in described harmful gas process pipe (1.2);
Described water washing box (2) comprises the casing (2.8) that water is housed, casing (2.8) is provided with tail gas suction port (2.2), with the relief opening (2.1) being connected air-water separation mechanism, a mixing wastewater with air plate (2.3) is at least provided with according to tail gas motion path in casing (2.8), described mixing wastewater with air plate (2.3) comprises skeleton (2.6), filler (2.7) is filled with in skeleton (2.6), described relief opening (2.1) bottom is provided with guide plate (2.10), the bottom of described casing (2.8) is provided with sewage draining exit (2.5).
2. system according to claim 1, is characterized in that, described mixing wastewater with air plate (2.3) is provided with waved filter plate (2.9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326850.0A CN105275556A (en) | 2014-07-10 | 2014-07-10 | Control system for water adding tank of explosion-proof diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326850.0A CN105275556A (en) | 2014-07-10 | 2014-07-10 | Control system for water adding tank of explosion-proof diesel engine |
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| CN105275556A true CN105275556A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410326850.0A Pending CN105275556A (en) | 2014-07-10 | 2014-07-10 | Control system for water adding tank of explosion-proof diesel engine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673144A (en) * | 2016-03-01 | 2016-06-15 | 兖州煤业股份有限公司 | Underground diesel trackless rubber-wheeled vehicle and tail gas purification device thereof |
| CN105840357A (en) * | 2016-05-06 | 2016-08-10 | 哈尔滨工程大学 | Diesel engine self-purification EGR device |
| CN106930806A (en) * | 2017-04-28 | 2017-07-07 | 徐工集团工程机械股份有限公司科技分公司 | A kind of anti-explosion diesel engine exhaust cooling system |
| CN107339135A (en) * | 2017-07-14 | 2017-11-10 | 东台火电环保科技有限公司 | Motorized vehicles and vessels tail gas absorber |
| CN108301902A (en) * | 2018-02-26 | 2018-07-20 | 华南理工大学 | A kind of centrifugal diesel engine exhaust gas purification device and its purification method |
| CN112302839A (en) * | 2019-08-02 | 2021-02-02 | 三井易艾斯机械有限公司 | Exhaust gas treatment device and control method thereof |
| CN114810286A (en) * | 2022-04-25 | 2022-07-29 | 中国煤炭科工集团太原研究院有限公司 | Engine exhaust treatment system, engine system and vehicle |
-
2014
- 2014-07-10 CN CN201410326850.0A patent/CN105275556A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673144A (en) * | 2016-03-01 | 2016-06-15 | 兖州煤业股份有限公司 | Underground diesel trackless rubber-wheeled vehicle and tail gas purification device thereof |
| CN105840357A (en) * | 2016-05-06 | 2016-08-10 | 哈尔滨工程大学 | Diesel engine self-purification EGR device |
| CN106930806A (en) * | 2017-04-28 | 2017-07-07 | 徐工集团工程机械股份有限公司科技分公司 | A kind of anti-explosion diesel engine exhaust cooling system |
| CN106930806B (en) * | 2017-04-28 | 2023-10-03 | 徐工集团工程机械股份有限公司科技分公司 | Exhaust cooling system of explosion-proof diesel engine |
| CN107339135A (en) * | 2017-07-14 | 2017-11-10 | 东台火电环保科技有限公司 | Motorized vehicles and vessels tail gas absorber |
| CN108301902A (en) * | 2018-02-26 | 2018-07-20 | 华南理工大学 | A kind of centrifugal diesel engine exhaust gas purification device and its purification method |
| CN108301902B (en) * | 2018-02-26 | 2023-09-26 | 华南理工大学 | Centrifugal diesel engine tail gas purifying device and purifying method thereof |
| CN112302839A (en) * | 2019-08-02 | 2021-02-02 | 三井易艾斯机械有限公司 | Exhaust gas treatment device and control method thereof |
| CN112302839B (en) * | 2019-08-02 | 2022-06-10 | 三井易艾斯机械有限公司 | Exhaust gas treatment device and control method thereof |
| CN114810286A (en) * | 2022-04-25 | 2022-07-29 | 中国煤炭科工集团太原研究院有限公司 | Engine exhaust treatment system, engine system and vehicle |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |
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| WD01 | Invention patent application deemed withdrawn after publication |